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Mostrando ítems 1-8 de 8
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ABA and GA 3 increase carbon allocation in different organs of grapevine plants by inducing accumulation of non-structural carbohydrates in leaves, enhancement of phloem area and expression of sugar transporters
Murcia, Mauro German; Pontin, Mariela Ana; Reinoso, Herminda; Baraldi, Rita; Bertazza, Gianpaolo; Gomez Talquenca, Gonzalo; Piccoli, Patricia Noemí; Bottini, Ambrosio Rubén (2016)Grape quality for winemaking depends on sugar accumulation and metabolism in berries. Abscisic acid (ABA) and gibberellins (GAs) have been reported to control sugar allocation in economically important crops, although the ... -
Allium sativum produces terpenes with fungistatic properties in response to infection with Sclerotium cepivorum
Pontin, Mariela Ana; Piccoli, Patricia Noemí; Burba, Jose Luis; Bottini, Ambrosio Rubén (2015-07)This study investigated terpene biosynthesis in different tissues (root, protobulb, leaf sheath and blade) of in vitro -grown garlic plants either infected or not (control) with Sclerotium cepivorum, the causative agent ... -
Azospirillum brasilense ameliorates the response of Arabidopsis thaliana to drought mainly via enhancement of ABA levels
Cohen, Ana Carmen; Bottini, Ambrosio Rubén; Pontin, Mariela Ana; Berli, Federico Javier; Moreno, Daniela Maria del Valle; Boccalandro, Hernan Esteban; Travaglia, Claudia Noemi; Piccoli, Patricia Noemí (2015-01)Production of phytohormones is one of the main mechanisms to explain the beneficial effects of plant growth‐promoting rhizobacteria (PGPR) such as Azospirillum sp. The PGPRs induce plant growth and development, and reduce ... -
Nitric oxide and abscisic acid regulate osmoprotective and antioxidative mechanisms related to water stress tolerance of grapevines
Pontin, Mariela Ana; Murcia, Mauro German; Bottini, Ambrosio Rubén; Fontana, Ariel; Bolcato, L.; Piccoli, Patricia Noemí (Wiley, 2021-03)Background and Aims: Exogenously applied nitric oxide (NO) and abscisic acid (ABA) are known to improve the tolerance of plants to abiotic stress. The effects of NO and ABA applications on physiological and metabolic ... -
Pseudomonas fluorescens and Azospirillum brasilense Increase Yield and Fruit Quality of Tomato Under Field Conditions
Pérez Rodriguez, María Micaela; Pontin, Mariela Ana; Lipinski, Victor Mario; Bottini, Ambrosio Rubén; Piccoli, Patricia Noemí; Cohen, Ana Carmen (Springer, 2020-09)Crop inoculation with plant growth-promoting rhizobacteria (PGPR) is a sustainable alternative to diminish the excessive use of chemical fertilizers in agriculture. However, there is little information about PGPR inoculation ... -
Solar UV-B radiation modifies the proportion of volatile organic compounds in flowers of field-grown grapevine (Vitis vinifera L.) cv. Malbec
Gil, Mariana; Bottini, Ambrosio Rubén; Pontin, Mariela Ana; Berli, Federico Javier; Salomon, María Victoria; Piccoli, Patricia Noemí (2014-11)Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in different plant tissues. Recent investigations reported dramatic changes of terpenes with a protective role in plant tissues submitted ... -
Transcriptome changes in grapevine (Vitis viniferaL.) cv. Malbec leaves induced by ultraviolet-B radiation
Pontin, Mariela Ana; Piccoli, Patricia Noemí; Francisco, Rita; Bottini, Ambrosio Rubén; Martinez-Zapater, José M.; Lijavetzky, Diego (2010-10)Ultraviolet-B radiation (UV-B, 280-315 nm) is a natural component of sunlight, which has numerous regulatory effects on plant physiology. The nature of the response to UV-B is dependent on fluence rate, dose, duration and ... -
Volatile organic compounds characterized from grapevine (Vitis vinifera L. cv. Malbec) berries increase at pre-harvest and in response to UV-B radiation
Gil, Mariana; Bottini, Ambrosio Rubén; Berli, Federico Javier; Pontin, Mariela Ana; Silva, Maria Fernanda; Piccoli, Patricia Noemí (2013-12)Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in plant tissues. Recent investigations have assigned a protective role of volatile organic compounds (VOCs) in plant tissues submitted ...